oil yellow


Definition of oil yellow

1 often capitalized O&Y
a : any of several oil-soluble yellow dyes
b or oil yellow II : a carcinogenic azo dye C6H5N2C6H4N(CH3)2 formerly used in coloring butter and oils; para-dimethyl-aminoazobenzene

called also butter yellow, methyl yellow

2 : a moderate greenish yellow that is greener and duller than citron yellow and deeper than linden green

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Learn More about oil yellow

Statistics for oil yellow

Cite this Entry

“Oil yellow.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/oil%20yellow. Accessed 16 December 2019.

Comments on oil yellow

What made you want to look up oil yellow? Please tell us where you read or heard it (including the quote, if possible).


having a smooth flowing sound

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble tiles that read scrabble quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Spell It

Can you spell these 10 commonly misspelled words?


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!